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Finding the Fourth Proportional to 88,584,043.20, 132,876,064.80 and 28,018,334.40

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Solution

The fourth proportional to 88,584,043.20, 132,876,064.80 and 28,018,334.40 is: 42,027,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,584,043.20 : 132,876,064.80 = 28,018,334.40 : x
  2. Step 2: Convert to fraction form
    88,584,043.20/132,876,064.80 = 28,018,334.40/x
  3. Step 3: Cross multiply
    88,584,043.20x = 132,876,064.80 × 28,018,334.40
  4. Step 4: Simplify right side
    88,584,043.20x = 3,722,966,017,322,469
  5. Step 5: Solve for x
    x = 3,722,966,017,322,469/88,584,043.20
  6. Step 6: Final answer
    x = 42,027,501.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.